Motorcycle metal fuel tank test assembly production line

Abstract

The utility model discloses a motorcycle metal fuel tank test assembly production line, which comprises an assembly working table and a sealing performance test working table, the input end of the sealing performance test working table is in butt joint with the output end of the assembly working table, and the sealing performance test working table adopts a differential pressure type leak detector to carry out a sealing performance test on a fuel tank. According to the utility model, the sealing performance test working platform is adjacently arranged at the downstream of the assembly working platform, so that the test process of the sealing performance test can be simplified, the labor consumption is reduced, and the sealing performance test working platform and the assembly working platform are combined together, thereby greatly reducing the labor consumption and temporary transfer sites, and forming a flow production line.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of motorcycle metal oil tanks, in particular to a new motorcycle metal oil tank test assembly production line. Background Art

[0002] The existing production and processing levels of motorcycle fuel tanks vary greatly, from manual shearing, mechanical assisted stamping, manual welding, cleaning and painting to the common manual mechanical operations in China, such as shearing machines, punching machines, welding machines, and coating production lines, while internationally renowned brand manufacturers use robots-based stamping, welding, painting or electrophoretic coating, robot transfer, etc. However, the production process of fuel tanks is basically the same, which is roughly as follows: "cutting - stamping - welding - welding inspection - sealing test - painting - painting inspection - assembly (removing painting accessories, installing fuel tank accessories) - inspection (inspecting assembly quality) - finished product". In short, no matter what the process content is, since the sealing test and assembly are both manual operations, the existing process flow of fuel tank production is not smooth, there are many process breakpoints, there are problems such as high labor consumption, long logistics time, and large site occupation.

[0003] The sealing test in the above process, also known as leak detection, is used to check the welding quality and is a necessary test item for each fuel tank before leaving the factory. Usually, the "water test method" or "water tank method" is used. Because it needs to be immersed in water, the leak detection process is generally set before painting, and the leak detection test cycle and test equipment both restrict the optimization of the overall process.

[0004] The fuel tank assembly includes various fuel tank accessories such as the lower coating plug and the installation of the fuel pump. Both domestic and foreign operations are done manually, with different parts, many steps and links, and large differences in operation time and actions. There is currently no standardized operation.

[0005] In order to improve the above process, the applicant proposed the following new process flow: "cutting - laser coding - stamping - welding - on-line inspection - painting - off-line inspection - assembly - sealing test - inspection and scanning (laser code) - finished product", and developed new equipment to meet the above new process flow, so as to achieve a smooth process and significantly reduce labor consumption. Utility Model Content

[0006] The utility model aims to provide a new motorcycle metal oil tank test assembly production line.

[0007] The invention object of the utility model is achieved through the following technical scheme: a motorcycle metal fuel tank test assembly production line, including an assembly workbench and a sealing test workbench, characterized in that the input end of the sealing test workbench is connected to the output end of the assembly workbench, and the sealing test workbench uses a differential pressure leak detector to perform a sealing test on the fuel tank.

[0008] The utility model abandons the water inspection method and adopts the differential pressure test method for the sealing test, and sets the sealing test after the metal oil tank assembly is completed. Since the oil tank only has two small openings, the oil port and the oil pump outlet pipe port, the test steps of the sealing test can be simplified and the labor consumption can be reduced. In addition, the production line is also conducive to reducing the number of manual transfers of oil tanks and the space occupied by temporary storage transfers. For example, in the general process flow, the sealing test and the assembly both involve manual transfers. The utility model combines the two together, which can significantly reduce the number of manual transfers.

[0009] Preferably, the differential pressure leak detector adopts a differential pressure air leak detector, which is more conducive to cost control.

[0010] The assembly workbench is composed of a plurality of (more than two) single-station workbenches arranged in a process-oriented manner, and the workbenches are connected by inclined slide rails for unpowered transfer of workpieces. The assembly workbench and the sealing test workbench are also connected by inclined slide rails.

[0011] The above-mentioned inclined slide rail is mainly used for temporary storage and transfer of workpieces, and can well balance the slight differences in cycle time between workstations.

[0012] In order to adapt to the production rhythm of the coating production line (20-25 seconds / tank), form a process operation, and further reduce labor consumption and floor space, this embodiment recommends the following solution:

[0013] The assembly workbench is composed of 3 single-station assembly workbenches, and the sealing test workbench is composed of 1 single-station sealing test workbench; 6-8 special toolings for placing oil tanks are arranged side by side on the sealing test workbench, and the special toolings are adjacent to each other in a group, and each group of tooling is equipped with a differential pressure air leak detector, which is connected to a special plug matching the oil port of the oil tank through a pipeline. After pressing the start button, the electronic control system controls the differential pressure air leak detector to automatically complete the sealing test of the oil tank to be tested that is connected to it through the special plug.

[0014] The assembly workbench and the sealing test workbench are both provided with special tooling for placing the oil tank, and the special tooling includes a bracket and two seat plates, the two seat plates are supported by the bracket at the bottom and arranged side by side on the left and right, and a gap with a large middle and small ends is formed between them to form a guard ring supporting configuration. When the oil tank to be inspected is placed on the special tooling, its lower part is seated in the ring hole and is positioned, and the oil tank bracket in the middle is supported on the adjacent sides of the two seat plates.

[0015] The tooling can not only position the fuel tank well, but also contacts the fuel tank only through the fuel tank bracket, which is conducive to better protecting the fuel tank coating. In addition, the tooling has a simple structure and low cost, and can cooperate well with manual operations at the assembly station and the sealing test station.

[0016] The seat plate is made of PU board.

[0017] An automatic marking device is arranged near the special tooling of the sealing test workbench, and the differential pressure air leak detector is connected to the automatic marking device through an electric control system. After the oil tank air tightness test on the corresponding tooling is qualified, the automatic marking device at the tooling position automatically completes marking.

[0018] Beneficial effects:

[0019] Compared with the prior art, the utility model arranges the sealing test workbench adjacent to the downstream of the assembly workbench, which not only simplifies the test process of the sealing test and reduces labor consumption, but also combines the two together, greatly reducing labor consumption and temporary storage and transfer sites, forming a process-based production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of a preferred embodiment of the utility model;

[0021] Figure 2 It is a top view of a preferred embodiment of the utility model (mainly showing the structure of the workbench surface layer);

[0022] Figure 3 It is a structural schematic diagram of a special tooling and an automatic marking gun in a preferred embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of a special tooling and an automatic marking gun in a preferred embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a special cock in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0025] Compared with the prior art which uses a water test method to conduct a sealing test on the oil tank, but is limited to setting up the work station before painting, this embodiment uses a differential pressure test method to conduct a sealing test on the oil tank, and moves the work station to the assembly station, which is beneficial to reduce the number of manual transfers of the oil tank required on the production line, thereby reducing manpower consumption and reducing the required site size.

[0026] Compared with the motorcycle metal fuel tank production line in the prior art, the present embodiment is different in that: Figure 1 , 2As shown, the input end of the sealing test workbench 2 is connected to the output end of the assembly workbench 1.

[0027] As stated in the background technology section of the present invention, the water inspection method sealing test and assembly operation in the prior art are all performed manually, which cannot be streamlined, so it involves multiple manual transfers. In this embodiment, Figure 1 , 2 As shown, the two are combined together, which can reduce at least two manual transfers.

[0028] In addition, it should be noted that the production line of this embodiment sets the sealing test after the metal oil tank assembly is completed. At this time, the oil tank only has two small openings, the oil port and the oil pump outlet pipe port. Obviously, this can simplify the test steps of the sealing test and further reduce labor consumption.

[0029] In this embodiment, if Figure 1 , 2 As shown, the assembly workbench 1 is composed of three single-station assembly workbenches 11, and the sealing test workbench 2 is composed of one single-station sealing test workbench. They are arranged in a process-based manner, and the upstream and downstream workbenches are connected by an inclined slide rail 3 for unpowered transfer of workpieces. 6-8 special tooling 21 (6 in the figure) for placing oil tanks are arranged side by side on the sealing test workbench. The special tooling 21 adjacent to each other is a group, and each group of tooling is equipped with a differential pressure air leak detector 22. The differential pressure air leak detector 22 is connected to a special cock 24 matching the oil port of the oil tank through an air pipe 23. After the start button on the operating box is pressed, the electronic control system controls the differential pressure air leak detector 22 to automatically complete the sealing test of the oil tank to be tested that is connected to it through a special cock 241.

[0030] The fuel tank assembly includes various fuel tank accessories such as unloading and painting tools and installing oil pumps. Workstations are set according to the production rhythm requirements and assembly and disassembly tasks for the purpose of balance. The temporary storage and transfer of workpieces between workstations is carried out through the inclined slide rail 3, which can well balance the slight differences in the cycle time between workstations. The use of a differential pressure air leak detector is intended to better control costs. In this embodiment, the assembly process is divided into three sections, which are respectively configured with material storage and pneumatic tools. On the workbench of each workstation, a special tool 12 for placing the fuel tank is also provided. The above arrangement of the assembly workbench can well adapt to the rhythm of the process operation of the painting process (20-25 seconds / fuel tank). In order to make the sealing test station also meet the requirements, this embodiment, through the reasonable design of the sealing test workbench 2, specifically the simplification of the connection method between the differential pressure air leak detector 22 and the oil tank, and the automation of the test process and the one-inspection-one-wait arrangement, greatly reduces the proportion of manual labor in the test of each oil tank, so that one person can test multiple oil tanks at the same time, and a single person can meet the production rhythm requirements of 20-25 seconds / oil tank or even faster for the coating production line and the assembly production line.

[0031] In this embodiment, the assembly and the sealing test use the same tooling structure, that is, the special tooling 12 and 21 have the same structure, as follows: Figure 3 , 4 As shown, Figure 3 , 4 What is shown is a special tool 21 for the sealing station, which includes a bracket 212 and two seat plates 211. The two seat plates 211 are supported by the bracket 212 below and arranged side by side on the left and right. A gap with a large middle and small ends is formed between them to form a retaining ring supporting configuration. When the oil tank to be inspected is placed on the special tool 21, its lower part is located in the ring hole and positioned, and the oil tank bracket in the middle is supported on the adjacent sides of the two seat plates 211. This tool can not only position the oil tank well, but also contact the oil tank only through the oil tank bracket, which is conducive to better protecting the coating of the oil tank. In addition, the tool has a simple structure and low cost, and can cooperate well with manual operation in the assembly station and the sealing test station. PU board can be selected for the seat plate 211.

[0032] like Figure 5 As shown, as a preferred embodiment, the overall contour of the special plug 24 is T-shaped, including a handle and a plug 241. There is an L-shaped air path in the handle. One end of the air path is connected to the differential pressure air leak detector 22 through the air pipe 23, and the other end is connected to the oil port of the oil tank to be tested through the plug 241. The structure of the plug 241 matches the oil port of the oil tank to be tested, and a 90-degree rotation can achieve a sealed connection and removal and transfer. It is light and efficient, reduces labor intensity, and improves labor efficiency.

[0033] like Figure 3 , 4As shown, in order to meet the needs of some manufacturers to mark the qualified oil tanks, this embodiment is also provided with an automatic marking device, which is specifically as follows: compared with the operation box arranged on the near side of the special tooling 21 of the sealing test workbench 2, the automatic marking device 4 is arranged on its far side, specifically between the two seat plates 211, and the differential pressure air leak detector 22 is connected to the automatic marking device 4 through an electronic control system. After the air tightness test of the oil tank on the corresponding tooling is passed, the automatic marking device 4 at the tooling position automatically completes the marking operation.

[0034] This embodiment sets the air tightness test and marking at the same workstation, making full use of the fact that the oil tank has been positioned during the air tightness test, and automatically marks the oil tank immediately after the air tightness test is passed, which can improve efficiency and avoid missing labels, wrong markings and misuse.

[0035] The utility model can greatly reduce the turnaround time and site of fuel tank assembly and sealing test, can be designed as a process operation according to the beat, meet the production beat requirements of the front-end painting production line and the rear-end motorcycle assembly production line, and lay a technical foundation for the innovative development of motorcycle metal fuel tank production technology.

Claims

1. A motorcycle metal fuel tank test assembly production line, including an assembly workbench and a sealing test workbench, characterized in that: The input end of the sealing test workbench is connected to the output end of the assembly workbench, and the sealing test workbench uses a differential pressure leak detector to perform a sealing test on the oil tank.

2. The motorcycle metal fuel tank test assembly production line according to claim 1, characterized in that: The differential pressure leak detector adopts a differential pressure air leak detector.

3. The motorcycle metal fuel tank test assembly production line according to claim 2, characterized in that: The assembly workbench is composed of a number of single-station workbenches arranged in a process-oriented manner, and the workbenches are connected by inclined slide rails for unpowered transfer of workpieces. The assembly workbench and the sealing test workbench are also connected by inclined slide rails.

4. The motorcycle metal fuel tank test assembly production line according to claim 3 is characterized in that: The assembly workbench is composed of 3 single-station assembly workbenches, and the sealing test workbench is composed of 1 single-station sealing test workbench; 6-8 special toolings for placing oil tanks are arranged side by side on the sealing test workbench, and the special toolings are adjacent to each other in a group, and each group of tooling is equipped with a differential pressure air leak detector, which is connected to a special plug matching the oil port of the oil tank through a pipeline. After pressing the start button, the electronic control system controls the differential pressure air leak detector to automatically complete the sealing test of the oil tank to be tested that is connected to it through the special plug.

5. The motorcycle metal fuel tank test assembly production line according to claim 4, characterized in that: The assembly workbench and the sealing test workbench are both provided with special tooling for placing the oil tank, and the special tooling includes a bracket and two seat plates, the two seat plates are supported by the bracket at the bottom and arranged side by side on the left and right, and a gap with a large middle and small ends is formed between them to form a guard ring supporting configuration. When the oil tank to be inspected is placed on the special tooling, its lower part is seated in the ring hole and is positioned, and the oil tank bracket in the middle is supported on the adjacent sides of the two seat plates.

6. The motorcycle metal fuel tank test assembly production line according to claim 5, characterized in that: An automatic marking device is arranged near the special tooling of the sealing test workbench, and the differential pressure air leak detector is connected to the automatic marking device through an electric control system. After the oil tank air tightness test on the corresponding tooling is qualified, the automatic marking device at the tooling position automatically completes the marking operation.

7. The motorcycle metal fuel tank test assembly production line according to claim 5, characterized in that: The seat plate is made of PU board.

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